CN203606483U - Three-phase voltage current simulation power supply used for on-site metering device - Google Patents

Three-phase voltage current simulation power supply used for on-site metering device Download PDF

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Publication number
CN203606483U
CN203606483U CN201320774268.1U CN201320774268U CN203606483U CN 203606483 U CN203606483 U CN 203606483U CN 201320774268 U CN201320774268 U CN 201320774268U CN 203606483 U CN203606483 U CN 203606483U
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CN
China
Prior art keywords
power supply
phase
current
phase voltage
voltage
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320774268.1U
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Chinese (zh)
Inventor
梁凯
金在冬
倪俊
柏永林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Wuxi Power Supply Co of Jiangsu Electric Power Co
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Wuxi Power Supply Co of Jiangsu Electric Power Co
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Application filed by State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Wuxi Power Supply Co of Jiangsu Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN201320774268.1U priority Critical patent/CN203606483U/en
Application granted granted Critical
Publication of CN203606483U publication Critical patent/CN203606483U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a three-phase voltage current simulation power supply used for an on-site metering device comprising a simulation power supply device. The simulation power supply device comprises a large-power chargeable lithium battery, an output end of which is connected with a three-phase power amplifier power supply and a system auxiliary power supply. The three-phase power amplifier power supply is connected with a power supply end of a three-phase voltage current power amplifier, and the system auxiliary power supply is connected with a power supply end of a three-phase voltage current signal generator. The three-phase voltage current power amplifier is connected with the output end of the three-phase voltage current signal generator, and the output end of the three-phase voltage current power amplifier is respectively connected with a primary side of a voltage isolation transformer and a primary side of a current isolation transformer. A secondary side of the voltage isolation transformer and a secondary side of the current isolation transformer are connected with the input end of the three-phase voltage current signal generator by a voltage current phase monitoring meter. The three-phase voltage current simulation power supply has advantages of convenient carrying, convenient utilization and operation, and ability of facilitating wiring inspection of on-site metering device in a zero-load state.

Description

Situ metrology device three-phase voltage current analog power
Technical field
The utility model relates to a kind of supply unit, and especially a kind of situ metrology device three-phase voltage current analog power, specifically carries out for situ metrology device the three-phase voltage current analog power that wiring check is used.
Background technology
On-the-spot electric power metering device is sold in electric energy and is had vital role in Utilities Electric Co., and in order to guarantee correct electric energy metrical, it is extremely important that the secondary circuit wiring between mutual inductor and electric energy meter obtains correctness, and false wiring meeting causes the mistake of electric energy metrical.Ordering about of economic interests simultaneously, stealing and transgression for using electricity are on the rise, for the correctness that guarantees wiring need regularly be carried out wiring check.
Field wiring inspection generally adopts electric energy meter field wiring check instrument to test, but be subject to the restriction of existing electric energy meter field wiring check instrument testing current scope, electric power meter secondary circuit wiring checking must need user to have under larger load condition just to carry out in test process.But when site inspection, in a lot of situations, there is the too low or uncharge situation almost of load, cannot carry out wiring check.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of situ metrology device three-phase voltage current analog power, its compact conformation, can facilitate under situ metrology device no load condition and carry out wiring check, easy to carry, use easy to operate, safe and reliable.
The technical scheme providing according to the utility model, described situ metrology device three-phase voltage current analog power, comprise simulation power supply device, described simulation power supply device comprises great-power chargeable lithium battery, the output terminal of described great-power chargeable lithium battery and three phase power amplifier power supply, system supplymentary power supply connects, three phase power amplifier power supply is connected with the power end of three-phase voltage current power amplifier, system supplymentary power supply is connected with the power end of three-phase voltage current signal generator, three-phase voltage current power amplifier is connected with the output terminal of three-phase voltage current signal generator, the output terminal of three-phase voltage current power amplifier respectively with the primary side of voltage isolating transformer, the primary side of electric current isolating transformer connects, the secondary side of the secondary side of voltage isolating transformer and electric current isolating transformer is connected with the input end of three-phase voltage current signal generator by electric current and voltage phase place monitoring form.
The secondary side of described voltage isolating transformer, the secondary side of electric current isolating transformer are connected with field electric energy measurement device, and described field electric energy measurement device comprises voltage transformer (VT), current transformer and three-phase electric energy meter; The primary side of voltage transformer (VT) is connected with the secondary side of voltage isolating transformer, and the primary side of current transformer is connected with the secondary side of electric current isolating transformer; The secondary side of voltage transformer (VT), the secondary side of current transformer are connected with three-phase electric energy meter.
Advantage of the present utility model: power is large, volume is little, be convenient for carrying, on-the-spot use simply, three-phase electric energy meter is connected with voltage isolating transformer by voltage transformer (VT), is connected with electric current isolating transformer by current transformer, simulation applied load, for electric energy meter field wiring check instrument provides test environment, thereby can find in time the wiring mistake that electric power meter may exist, the economic loss of avoiding electric power to manage, compact conformation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Description of reference numerals: 1-simulation power supply device, 2-great-power chargeable lithium battery, 3-three phase power amplifier power supply, 4-system supplymentary power supply, 5-three-phase voltage current power amplifier, 6-three-phase voltage current signal generator, 7-voltage isolating transformer, 8-electric current isolating transformer, 9-electric current and voltage phase place monitoring form, 10-voltage transformer (VT), 11-current transformer, 12-three-phase electric energy meter and 13-field electric energy measurement device.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1: for can be to carrying out easily wiring check, the utility model comprises simulation power supply device 1, described simulation power supply device 1 comprises great-power chargeable lithium battery 2, the output terminal of described great-power chargeable lithium battery 2 and three phase power amplifier power supply 3, system supplymentary power supply 4 connects, three phase power amplifier power supply 3 is connected with the power end of three-phase voltage current power amplifier 5, system supplymentary power supply 4 is connected with the power end of three-phase voltage current signal generator 6, three-phase voltage current power amplifier 5 is connected with the output terminal of three-phase voltage current signal generator 6, the output terminal of three-phase voltage current power amplifier 5 respectively with the primary side of voltage isolating transformer 7, the primary side of electric current isolating transformer 8 connects, the secondary side of the secondary side of voltage isolating transformer 7 and electric current isolating transformer 8 is connected with the input end of three-phase voltage current signal generator 6 by electric current and voltage phase place monitoring form 9.
The secondary side of described voltage isolating transformer 7, the secondary side of electric current isolating transformer 8 are connected with field electric energy measurement device 13, and described field electric energy measurement device 13 comprises voltage transformer (VT) 10, current transformer 11 and three-phase electric energy meter 12; The primary side of voltage transformer (VT) 10 is connected with the secondary side of voltage isolating transformer 7, and the primary side of current transformer 11 is connected with the secondary side of electric current isolating transformer 8; The secondary side of voltage transformer (VT) 10, the secondary side of current transformer 11 are connected with three-phase electric energy meter 12.
Particularly, in the utility model embodiment, great-power chargeable lithium battery 1 provides working power, convenient on-the-spot use.Great-power chargeable lithium battery 1 is connected with three phase power amplifier power supply 3 and system supplymentary power supply 4, the electric energy that three phase power amplifier power supply 3 is exported great-power chargeable lithium battery 1 provides work required power supply into three-phase voltage current power amplifier 5 after changing, system supplymentary power supply 4 provides work required power supply for three-phase voltage current signal generator 6, the power supply that system supplymentary power supply 4 is exported great-power chargeable lithium battery 1 is converted to the required power supply such as 5V or 15V, great-power chargeable lithium battery 2, three phase power amplifier power supply 3 and system supplymentary power supply 4 all can obtain by outsourcing.
Three-phase voltage current signal generator 6 provides the sinusoidal ac signal that six road waveforms are 50Hz, the setting that waveforms amplitude can be between positive and negative 10V; Six road signals are respectively and are defined as UA, UB, UC, IA, IB, IC, 120 ° of phase phasic differences between voltage waveform three-phase, and between voltage and corresponding electric current, phase place can regulate between positive and negative 180 °.
Three-phase voltage current signal generator 6 is sent the voltage, the current signal that produce into three-phase voltage current power amplifier 5, amplifies processing, improves output load capacity.Three-phase voltage current power amplifier 5 is exported the voltage, the current signal that amplify respectively again through superpotential isolating transformer 7 and electric current isolating transformer 8.Three-phase voltage current phase place monitoring form 9 is measured output voltage, current parameters in real time by voltage isolating transformer 7, electric current isolating transformer 8, send into three-phase voltage current signal generator 6 and carry out signal adjustment closed loop, guarantee the voltage of output, the accuracy of electric current.
When use, the once survey of the three-phase voltage that only voltage isolating transformer 7, electric current isolating transformer 8 need be exported, voltage transformer (VT) 10 summation current transformers 11 that current source is connected on respectively field electric energy measurement device 13, for whole field electric energy measurement device provides voltage, current signal.Then test at three-phase electric energy meter 12 ends by electric energy meter field wiring check instrument, can check the secondary circuit wiring situation of whole field electric energy measurement device.
The utility model power is large, volume is little, be convenient for carrying, on-the-spot use simply, three-phase electric energy meter 12 is connected with voltage isolating transformer 7 by voltage transformer (VT) 10, is connected with electric current isolating transformer 8 by current transformer 11, simulation applied load, for electric energy meter field wiring check instrument provides test environment, thereby can find in time the wiring mistake that electric power meter 13 may exist, the economic loss of avoiding electric power to manage, compact conformation, safe and reliable.

Claims (2)

1. a situ metrology device three-phase voltage current analog power, it is characterized in that: comprise simulation power supply device (1), described simulation power supply device (1) comprises great-power chargeable lithium battery (2), the output terminal of described great-power chargeable lithium battery (2) and three phase power amplifier power supply (3), system supplymentary power supply (4) connects, three phase power amplifier power supply (3) is connected with the power end of three-phase voltage current power amplifier (5), system supplymentary power supply (4) is connected with the power end of three-phase voltage current signal generator (6), three-phase voltage current power amplifier (5) is connected with the output terminal of three-phase voltage current signal generator (6), the output terminal of three-phase voltage current power amplifier (5) respectively with the primary side of voltage isolating transformer (7), the primary side of electric current isolating transformer (8) connects, the secondary side of the secondary side of voltage isolating transformer (7) and electric current isolating transformer (8) is connected with the input end of three-phase voltage current signal generator (6) by electric current and voltage phase place monitoring form (9).
2. situ metrology device three-phase voltage current analog power according to claim 1, it is characterized in that: the secondary side of described voltage isolating transformer (7), the secondary side of electric current isolating transformer (8) are connected with field electric energy measurement device (13), and described field electric energy measurement device (13) comprises voltage transformer (VT) (10), current transformer (11) and three-phase electric energy meter (12); The primary side of voltage transformer (VT) (10) is connected with the secondary side of voltage isolating transformer (7), and the primary side of current transformer (11) is connected with the secondary side of electric current isolating transformer (8); The secondary side of voltage transformer (VT) (10), the secondary side of current transformer (11) are connected with three-phase electric energy meter (12).
CN201320774268.1U 2013-11-28 2013-11-28 Three-phase voltage current simulation power supply used for on-site metering device Expired - Lifetime CN203606483U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320774268.1U CN203606483U (en) 2013-11-28 2013-11-28 Three-phase voltage current simulation power supply used for on-site metering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320774268.1U CN203606483U (en) 2013-11-28 2013-11-28 Three-phase voltage current simulation power supply used for on-site metering device

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CN203606483U true CN203606483U (en) 2014-05-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675751A (en) * 2013-11-28 2014-03-26 国家电网公司 Three-phase voltage and current analog power source for site metering device
CN106646326A (en) * 2016-09-19 2017-05-10 国网天津市电力公司 Intelligent monitoring method for electric energy metering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675751A (en) * 2013-11-28 2014-03-26 国家电网公司 Three-phase voltage and current analog power source for site metering device
CN106646326A (en) * 2016-09-19 2017-05-10 国网天津市电力公司 Intelligent monitoring method for electric energy metering device

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Granted publication date: 20140521

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